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1.发明公开
公开(公告)号：EP3954068A1
公开(公告)日：2022-02-16
申请号：EP20711565.0
申请日：2020-03-12
发明人： CATUOGNO, Tommaso , CAVALIERE, Fabio , SECONDINI, Marco , FORESTIERI, Enrico , POTI, Luca , FRESI, Francesco
IPC分类号： H04B10/516 , H04B10/524 , H04B10/69
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公开(公告)号：EP2095545A1
公开(公告)日：2009-09-02
申请号：EP06849538.1
申请日：2006-12-23
IPC分类号： H04B10/18
CPC分类号： H04B10/505 , H04B10/25137 , H04B10/5055
摘要： A signal processor for compenstaing for optical fibre chromatic dispersion comprising encoding means (5) for encoding a source signal (2) received from a data source (6), splitting means (8) to separate the encoded signal (7) from the encoding means (5) into an in-phase component (10) and an in-quadrature component (11), a first filter means (12) adapted to receive the in-phase component (10) and a second filter means (13) adapted to receive the in-quadrature component (11), the first filter means (12) and second filter means (13) being adapted to filter the in-phase and in-quadrature components respectively. The outputs (14, 15) from the filter means form the input to the optical modulator means (3).
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公开(公告)号：EP2399353B1
公开(公告)日：2017-04-26
申请号：EP09779084.4
申请日：2009-02-20
CPC分类号： H04B10/6971 , H04L25/03133
摘要： An equalizer (60) processes, in the electrical domain, a signal obtained from a path of an optical transmission system. The equalizer comprises N cascaded stages (where N≧1). At least one of the stages comprises a cascade of a linear equalization element (61) and a non-linear equalization element (62). The equalizer (60) is able to compensate for both linear impairments, such as dispersion, and non-linear impairments. The cascaded linear and non-linear elements can simulate the effect of signal propagation through a fiber which has the opposite propagation parameters (e.g. attenuation, dispersion, non-linearity) to those of the propagation path experienced by a signal in the transmission system. The non-linear equalization element (62) can be a non-linear phase rotator which rotates phase of an input signal proportional to the squared modulus of the input signal amplitude. The linear equalization element (61) can comprise a digital filter, such as an Infinite Impulse Response (HR) filter or a Finite Impulse Response (FIR) filter.
摘要翻译： 均衡器（60）在电域中处理从光传输系统的路径获得的信号。 均衡器包括N个级联级（其中N≥1）。 至少一个级包括级联的线性均衡元件（61）和非线性均衡元件（62）。 均衡器（60）能够补偿线性损伤，例如色散和非线性损伤。 级联的线性和非线性元件可以模拟通过具有与传输系统中的信号所经历的传播路径相反的传播参数（例如衰减，色散，非线性）的光纤的信号传播的效果。 非线性均衡元件（62）可以是非线性相位旋转器，其旋转与输入信号幅度的平方模量成比例的输入信号的相位。 线性均衡元件（61）可以包括数字滤波器，诸如无限脉冲响应（HR）滤波器或有限脉冲响应（FIR）滤波器。
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公开(公告)号：EP3143708B1
公开(公告)日：2019-03-13
申请号：EP14723433.0
申请日：2014-05-12
IPC分类号： H04B10/2507 , H04B10/2513 , H04B10/2531
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7.发明公开
公开(公告)号：EP3348008A1
公开(公告)日：2018-07-18
申请号：EP15763540.0
申请日：2015-09-08
IPC分类号： H04B10/516 , H04B10/556 , H04J14/04
CPC分类号： H04B10/5563 , H04B10/25 , H04B10/503 , H04B10/516 , H04J14/04
摘要： A method of transmitting communications traffic, the method comprising steps of receiving a sequence of communications traffic bits; and mapping the sequence of communications traffic bits onto a respective one of a plurality of transmission symbols for transmission during a symbol time. Each transmission symbol is identified by a respective first symbol identifier indicative of a respective one or more of a plurality, M, of wavelengths for a transmission signal and a respective second symbol identifier indicative of a respective one or more of a plurality, N, of optical fibres on which to transmit the transmission signal.
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公开(公告)号：EP2862297B1
公开(公告)日：2018-10-31
申请号：EP12740138.8
申请日：2012-07-25
CPC分类号： H04B10/6971 , H04B10/616 , H04B10/695
摘要： A method of detecting a signal in an optical receiver is described. The method includes converting a received optical signal to a digital electrical signal comprising a plurality of samples, applying a predetermined phase rotation to said samples to obtain amplitude and phase components of phase range adjusted sample values, and performing a first detection process based on the amplitude and phase components of the phase range adjusted sample values.
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10.发明公开
公开(公告)号：EP3143708A1
公开(公告)日：2017-03-22
申请号：EP14723433.0
申请日：2014-05-12
IPC分类号： H04B10/2507 , H04B10/2513 , H04B10/2531
CPC分类号： H04B10/25133 , H04B10/07951 , H04B10/07955 , H04B10/25073 , H04B10/2531 , H04L25/03191
摘要： A method (10) of non-linear propagation impairment equalization, the method comprising the steps of: a. receiving (12) communications traffic carried by an optical communications signal transmitted over an optical communications link; b. generating (14) a time dependent filter representation of a nonlinear time-variant impulse response of the inverse of the optical communications link; and c. applying (16) the time dependent filter representation to the received communications traffic to form non-linear propagation impairment equalized communications traffic. An optical communications link nonlinear propagation impairment equalizer and optical communications signal receiver apparatus are also provided.
摘要翻译： 一种非线性传播损害均衡的方法（10），所述方法包括以下步骤：a。 接收（12）通过光通信链路传输的光通信信号携带的通信业务; 湾 产生（14）光通信链路的逆的非线性时变脉冲响应的时间依赖滤波器表示; 和c。 将时间相关滤波器表示应用（16）到所接收的通信业务，以形成非线性传播损害均衡通信业务。 还提供了光通信链路非线性传播损害均衡器和光通信信号接收机装置。
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